import Vue from 'vue'
import VueRouter from 'vue-router'
import Login from '../components/Login.vue'
import Home from '../components/Home.vue'
import Welcome from '../components/Welcome'
import User from '../components/user/User.vue'
import Rights from '../components/power/Rights'
import Roles from '../components/power/Roles'
import Categories from '../components/goods/Categories'
import Params from '../components/goods/Params.vue'
import Goods from '../components/goods/Goods.vue'
import Add from '../components/goods/Add.vue'
import Oders from '../components/order/Orders.vue'
import Report from '../components/report/Report.vue'
Vue.use(VueRouter)

const router = new VueRouter({
  routes: [{
    path: '/',
    redirect: '/login'
  }, {
    path: '/login',
    component: Login
  }, {
    path: '/home',
    component: Home,
    redirect: '/welcome',
    children: [{
      path: '/welcome',
      component: Welcome
    }, {
      path: '/users',
      component: User
    }, {
      path: '/rights',
      component: Rights
    }, {
      path: '/roles',
      component: Roles
    }, {
      path: '/categories',
      component: Categories
    }, {
      path: '/params',
      component: Params
    }, {
      path: '/goods',
      component: Goods
    }, {
      path: '/goods/add',
      component: Add
    }, {
      path: '/orders',
      component: Oders
    }, {
      path: '/reports',
      component: Report
    }]
  }]
})

// 给router挂在一个导航守卫
router.beforeEach((to, from, next) => {
  // to 将要访问的路径
  // from 表示从哪个路径访问来
  // next放行 next('/login') 强制跳转
  if (to.path == '/login') return next()
  const tokenStr = window.sessionStorage.getItem("token")
  if (!tokenStr) return next('/login')
  next()
})
export default router
